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Session Report

Summary:
Test run at: 2023-07-21 09:05:34 GMT
Client Prefix (v4): 102.212.181.x/24
Client AS (v4): 36962 (MTNZ-AS)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
Largest spoofable neighbor prefix length none
Spoof status key
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.

Warnings:

IPv4 AS Route:
This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

  

  

IPv4 Adjacent Netblock Testing:

Your host (102.212.181.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
102.212.181.x/24/3136962rewritten
102.212.181.x/24/3036962rewritten
102.212.181.x/24/2936962rewritten
102.212.181.x/24/2836962rewritten
102.212.181.x/24/2736962rewritten
102.212.181.x/24/2636962rewritten
102.212.181.x/24/2536962rewritten
102.212.181.x/24/2436962rewritten
102.212.180.x/24/2336962rewritten
102.212.183.x/24/2236962rewritten
102.212.177.x/24/21328957rewritten
102.212.189.x/24/2037190rewritten
102.212.165.x/24/19UNROUTEDrewritten
102.212.149.x/24/18328631rewritten
102.212.245.x/24/17329278rewritten
102.212.53.x/24/16329240rewritten
102.213.181.x/24/15UNROUTEDrewritten
102.214.181.x/24/14UNROUTEDrewritten
102.208.181.x/24/13UNROUTEDrewritten
102.220.181.x/24/12UNROUTEDrewritten
102.196.181.x/24/11UNROUTEDrewritten
102.244.181.x/24/1036912rewritten
102.148.181.x/24/937287rewritten
102.84.181.x/24/837075rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.
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